Ventilator.



A. D. WARD.

VENTILATOE.

APPLICATION FILED SEPT.3, 190a.

Patented Ju ne 15, 1909.

ABRAHAM DEXTER WARD, OF CHICAGO, ILLINOIS.

VENTILATOR.

Specification of Letters Patent.

Patented June 15, 1909.-

Application filed September 3, 1908. Serial No. 451,537.

To all whom it may concern:

Be it known that I, ABRAHAM DEXTER \Vmo, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, haveinvented a certain new and useful Improvement in Ventilators, of which the following is a specification.

This invention relates to an improved ventilator, and has for its object to provide a construction which will permit a free circulation of air within the room Without creating any direct drafts, the current of air being regulated by adjusting the window.

Another object is-to provide a construction which will be comparatively simple, economical and durable, and at the same time will eliminate the dust and other atmospheric impurities as well as snow and rain.

The invention consists in the features of construction and combination of parts hereinafter described and claimed.

In the drawings Figure l is a vertical sectional elevation of this improved ventilator; Fig. 2 is a top or plan view of the ventilator with the cap or cover removed therefrom; and Fig. 3 a transverse section taken on line 33 of Fig. 1. i

This improved ventilator isadapted to rest upon the lower sill or base of the window frame, the side walls thereof contacting the window frame; and for ordinary use the ventilator extends upwardly from the window base, usually from twelve to thirty-six inches, as desired.

The frame a of the ventilator is usually, as indicated in Fig. l, of a rectangular formation and made of metal. The ventilator frame comprises a series of alternately arranged bafiie or deflecting plates 5 and 6, re-

spectively secured to the opposite sides of the frame, and extendinwardly substantially to the center thereof, said deflecting or bafiie plates having flanged edges 7 for engaging and retaining movable glass-sections 8. As best shown in Fig. 2, these movable glass sections 8 are positioned in staggered relation with respect to one another upon both sides of the ventilator frame, for the purpose of permitting the inflowing fresh air to be admitted through the openinns 9 on the outer side or face of the ventilator frame, and to travel inwardly, the current or draft thereof being eliminated by reason of the glass sections on the opposite side of the frame, will tend to divert and direct the inflowing air into the contiguous air chambers 10, from which the air is permitted to quietly flow through the outlet passages 11 into the room. I i

A diagonally positioned plate 19- is arranged lengthwise along the bottom of the ventilator frame, as indicated in Fig. 3, its upper. edge being secured to the inner side wall of the ventilator .frame for the purpose of'shedding rain, snow, sleet and dust; and the outer side walls 14' of the ventilator frame are flanged so as to snugly abut against the side strips of the window frame. If desired, rubber strips may be inserted along the outer edge of the side walls of the ventilator frame for effectually keeping out moisture, rain and drafts. A flanged cap or cover 15 is secured upon the ventilator frame after the movable glass sections are set in place.

What I claim as new and desire to secure by Letters Patent is:

1. In a ventilator, a frame, a series of flanged walls arranged on opposite sides of .the frame and in staggered relation with re-.

spect to-one another, and a plurality of removable transparent bafile plates positioned within the flanged walls for directing the flow and travel of the admitted air, substantially as described.

2. In a ventilator, a frame, aseries of flan ed walls arranged on opposite sides of the rame'and in staggered relation with respect to one another, a plurality of removable transparent baflle plates normally positioned within the flanged walls, and a cover adapted to be secured upon the to of the ventilator frame when the bafile plates are secured therein for retaining the same in place, substantially as described.

3. In a ventilator, a frame, a series of flanged walls arranged on op osite sides of the frame and in staggered re ation with respect to {one another, an outwardly inclined frame base for shedding water, snow and dirt, and a plurality of removable glass baffie latespositioned within the flanged frame .wa ls, substantially as'described.

the frame and in staggered relation with refie plates are secured therein for retainin ipect to) one fanotlllleldan outwardly inclined the same in place, substantially as describe ame ase or s e ing water, snow and I dirt, a plurality of removable glass baflie ABRAHAM DEXTER WARD 5 plates positioned within the flanged frame Witnesses:

walls, and a cover adapted to be secured upon HARRY L. WILLIAMS, the top of the ventilator frame when the baf- M. W. YVILLIAMs. 

